Retarded circuit breaker



Nov. '12, 1929. H. R. STEWART '1,735,588

RETARDED CIRCUIT BREKER Filed Aug. 29, 1925 L 6 www@ ytl Wm /M INVENTOR F1 g2g 44 A v Win71, BY

ATTORNEY Patented Nov. 12, 1929 PATENT OFFICE HOWARD R. STEWART, OF LOS ANGELES, CALIFORNIA RETARDED CIRCUIT BREAKER Application filed August 29, 1925.

This invention relates to a vending machine,` and particularly aims to provide a device of this character in the nature of a radio receiving apparatus.

Specifically, it is an object of the invention to provide a radiol receiving set of any desired type with which a timeV control vending apparatus is associated, so that by the depositing of a token the set- Will become operative and ramain so for a predetermined period of time.

A further object is that of providing a vending device which is particularly adapted for use in the association aforenamed, but which may be employed to advantage in nu- 15 merous other different associations,and which,

in all instances, will operate in a positive manner to produce uniformly desirable results. f

An additional object is thatof providing a device which will efficiently perform the purposes for which it is intended, and which will also be economically and readily manufactured and easily assembled.

The invention accordingly comprises the features'of construction, combination of elements, and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

Fig. 1 is a diagrammatic front elevation of a radio receiving set embodying the subject matter of the present invention Fig. 2 is a plan view of the interior time control mechanism and taken along the lines 2-2 of Fig. 1; y

Fig. 3 is a fragmentary partly sectional side view of the vending .device and showing the parts of the latter in their normal or inoperative positions; and

Fig. 4 is also a sectional side view of the vending device, but illustrating the mechanism thereof in its initially thrown position.

Vit-h reference primarily to Fig. 1, the numeral 5 indicates a receiving set having the conventional aerial and ground leads 6, as

Serial No. 53,218.

well as battery leads 7, and being connected with a reproducing unit, such as a loud speaker 8. It is here to be understood that the receiving' set might be of any desired type, and that the vending device incorporating' the time control, hereinafter more particularly explained, instead of being located Within the cabinet (as illustrated), might be situated at any desired point.

Still with reference to Fig. 1, it will be noted that in the present exemplification a coin or token slot 9 is provided in the cabinet 5, and that a control knob 13 extends beyond a slot 11 also formed in this cabinet. As in Figs. 2, 3 and 4, the coin slot 9 is in communication with a chute 12, and the knob 13 is connected with a handle 10.

Both the chute and handle are preferably mounted upon a casing 14, which may be filled with fluid, as, for example, oil. Situated within this casing is a tank 15, and this latter element is supported and moved by means of a rod 16, which has its lower end attached thereto.

The tank 15 is normally maintained in elevated position, as illustrated in Fig. 3, by forming the rod 16 with a notch 17 and mounting a spring-pressed trigger 18 upon the upper face of the casing in such a manner that it may enter this notch, as has been indifcatedin dotted lines in Fig. 2. The tank, however, tends t0 remain in the position shown in Fig. 4 by reason of the fact that a spring 19 encircles the rod 16 and is interposed between the bracket which attaches this rod to the tank and the upper face of the casing 14.

lVith a view to operating the mechanism it will be observed that the rod carries a stopmember 20 and the handle or lever 10 pivotally carries a collar 21, which slidably encircles the rod and is engageable with the stop-member. This handle is attached at its inner end to a shaft 22 carried by a suitable bracket supported by the casing 14, and secured to this shaft is a lever having arms 23 and 24, the former supporting a pin 25, and the latter being connected to one end of a spring` 26, the opposite end of which is attached to the casing so as to normally maintain the handle in the position indicated in Fig. 3.

If a coin or suitable token is thrust into the coin slot 9 it will travel down the chute 12 and rest in the position shown in dotted lines in Fig. 3. In other words, it will engage the stop-member 27 and the inner upper edge of the trigger 18. If now the handle is rocked downwardly the collar 21 will freely slide upon the rod 16, it being understood that there is sufficient play between the points of pivotal connection of the handle, collar and bracket and the rod 16 to prevent any binding. In such downward movement the arm 23 of the lever which is attached to the shaft 22 will also be swung downwardly so that the pin 25 will engage the upper edge of the coin, thereby forcing the pivotally-mountedtrigger 18 to swing against the tendency of the spring associated therewith, causing the rod 16 to be released. to permit the spring l19 to depress the tank 15 within the casing. The fluid within the casing will cascade over the edges of the tank, and when it is filled it will be obvious that by elevating the handle 10 the collar 21 will engage the stop-member 2O to raise the rod 16, and, consequently, move the tank again to the position shown in Fig. 3. Due to the fact that in the present ei;- emplification the lower face of the tank is formed with an opening 28, the fluid within the same may now escape, and this escape will occupy a predetermined interval of time-according to the size of the opening and the viscosity of the fluid.

Having` in mind in the present instance that the vending device is to control a circuit, it will be noted that the tank carries a float 29, which, when in its lowermost position, bears against a contact arm 30 and forces the latter out of engagement with a contact arm 31. This latter element, by means of a wire 32, may be connected to any desirable lead of the receiving set. The second lead of the circuit with which it is associated is in the present instance depicted by the wire `33 which is mounted upon the metallic strip 34, which acts as a stop for the trigger 18 and which is insulated from the casing.

Thus, with the parts in the position shown in Figs. 2 and 4, the circut is closed. However, with the float in the position shown in Fig. 3, in which all fluid has escaped from within the tank 15, the circuit will be open,

1 due to the fact that the arms 30, 31 are separated, and it will finally be appreciated thatincident to the contact extant between the strip 34 and the trigger 18-the circuit may not be closed by simply depressing the tank 15 to elevate the fioat 29, but it becomes necessary to elevate the entire tank to its normal position before the trigger 18 resumes the position in which contact is closed between its body, the mechanism of the time control and the lead 33.

Thus, among others, the objects specifically aforementioned are accomplished, and since certain changes may be made in the above construction, and different embodiments of the invention could be made, without departing from the scope thereof, it is intended that all matter contained in the above description, or shown in the accompanying drawings, shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which as a matter of language might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A time control device, including, in combination, a casing containing a liquid, a tank within said casing, means for submerging said tank within the liquid to fill the tank, means for subsequently raising said tank together with the liquid with which it is filled, said tank being formed with an opening whereby to return the liquid from within the same into said casing, and circuit controlling mechanism actuated both upon the filling of said casing and the draining thereof.

2. A time-control device, including a liquid-containing casing, an open tank, means for submerging said tank within the casing and for subsequently elevating the filled tank, and means actuated by the liquid within said tank for closing a circuit with which said time control device is associated.

3. A time-control device, including a liquid-containing casing, an open tank, means for submerging said tank within the casing and for subsequently elevating the filled tank, a float associated with said tank and movable in response to the presence and lack of liquid within the same, and a switch operable by said iloat and connected with a circuit with which said time control device is associated.

4. A time-control device, including a liquid-containing casing, an open tank, a rod connected with said tank for normally preventing movement of the same and retaining said tank elevated within said casing, means for submerging said tank within the casing liquid, means for raising said tank together with the liquid with which it is filled, and a movable switch, the position of which is controlled by the presence and absence of liquid within said tank, said tank being formed with an opening whereby the liquid within t-he same will be drained into said casing when said tank is in elevated position therein.

5. A time control device, including, in combination, a liquid-containing casing, an open tank within said casing, a rod connected with said tank, means associated with said rod for normally retaining said tank above said liquid, means for submerging said tank Within the casing liquid when said first-mentioned means is released, said first-mentioned means, when in rod-holding position, closing one contact of a circuit, and, when in released position, opening said contact; a movable switch in series with said contact, means associated with said switch for closing the same when liquid is present within said tank, and for opening the same when said tank is empty; said tank being` formed with an opening whereby the liquid within the same will be drained into said casing when said tank is in elevated position therein.

6. A time control device, including, in combination, a liquid-containing` casing, an open tank within said casing, a rod connected with said tank, means associated with said rod for normally retaining said tank above said liquid, said means comprising a pivoted latch-member cooperating with a notch in said rod, means for submerging said tank within the casing liquid when said first-mentioned means is released; said latch, when disposed within said notch, closing one contact of a circuit, and, when in released position, opening said contact, a movable switch in series with said contact, means associated with said switch for closing the same when liquid is present within said tank, and for opening the same when said tank is empty; said tank being formed with an opening whereby the liquid within the same will be drained into said casing when said tank is in elevated position therein.

In testimony whereoi:l I atliX my signa-ture.

HOWARD R. STEVART. 

